A primary source is an original document or publication relating to a particular subject, experiment, time period, or event. Autobiographies, journals, and diaries are considered primary sources. Original manuscripts and contemporary records, such as newspaper articles and firsthand accounts from the period, are primary sources. Creative works - music, art, literature - are also primary sources. Primary sources provide the raw information or data which scholars use in their research.
In literature, the most important primary source is usually the literary work or group of works which is the focus of research. Other primary source materials can add greatly to your understanding of the work you are researching within its cultural and historical context. Letters, diaries, and original manuscripts by the author; letters and diaries written by people who lived in the historical period and/or the geographical location of the author or the work; newspaper and magazine articles contemporary with the writing and publication of the literary work. All these and many other primary sources can enhance your interpretation of the work.
Many primary source materials are available to you from the Library in these collections:
"Ancient Philosophy" in the keyword field